Industrial unions are more likely to increase wage rates by restricting the supply of labor than are craft unions.

Industrial unions aim to organize all workers in a particular industry, regardless of the specific job or skill level, and they typically seek to improve wages and working conditions through collective bargaining for all members. Craft unions, on the other hand, represent workers in a specific trade or craft and often seek to increase wages by limiting the supply of labor through apprenticeship programs and other means.